WO2004028925A1 - Fill-out container - Google Patents

Abstract

A fill-out container of an easily-to-release stacked squeeze type having a base cup with a second check valve closely fitted to the bottom part thereof in which the opening part of a container body having a first check valve at the mouth tube part thereof is provided to assure the stable and firm assembly of the container body to the base cup and provide the assured fitting of the container body to the base cup, wherein the bottomed cylindrical base cup (20) in which a vent hole (25) opened in the bottom part (8) of the container body (1) as a squeeze delaminated bottle having the mouth tube part (6) opened and closed by the first check valve (18) and the opening part (15) as the inlet of outside air to a clearance between an outer layer (2) and an inner layer (3) opened in the bottom part (8) is opened and closed by the second check valve (27) is closely threaded onto the container body (1), and a seal part for closely sealing a clearance between a step part (11) functioning as a reinforcement part provided on the bottom peripheral wall (9) of the bottom part (8) and the base cup (20) is provided in proximity to the step part (11), whereby the shape maintainability of the wall structure at the assembled portion of the container body with the base cup can be increased by a large number of recesses and projections, and both members can be closely fitted to each other.

Description

 Description Dispensing container Technical field

 The present invention relates to a pouring container capable of pouring out contents without allowing outside air to enter the inside of the container, and in particular, comprises an outer layer formed into a fixed shape and an inner layer detachably laminated on the outer layer. The present invention relates to a dispensing container composed of a combination of a container body to be used and a base lip tightly mounted on the bottom of the container body. Background art

 The inner layer is releasably laminated on the inner side of the outer layer, and a mouthpiece part for forming a spout of the contents is provided on the upper part. This part of the outer shoulder located on the bottom wall of the bottomed cylindrical shape has A squeeze-deformable container body with an opening for introducing outside air between the outer layer and the inner layer, and a mouthpiece section of the container body to prevent backflow of contents and inflow of outside air into the container body The first check valve that opens and closes, the base cup that fits tightly on the bottom of the container body and has a vent hole in the bottom plate, and the second check valve that is assembled to the vent hole of this base scoop to allow the introduction of outside air The applicant of the present application has previously filed a container composed of a check valve and a check valve (for example, see Patent Document 1).

 [Patent Document 1]

 Japanese Patent Application No. 2 0 0 2-1 2 9 1 9 5

In the prior art described above, the base cup exerts a reinforcing effect on the bottom of the container body, so that the bottom of the container can have stable strength and self-supporting function. However, as the demand for resource saving increases, the squeezability of the container body increases, and the container body tends to deform accordingly. However, depending on the degree of the ease of the deformation, there is a concern that the strength of the connection between the container body and the base cup and the reliability of the sealing property may be reduced. Disclosure of the invention

 Of the present invention for solving the above technical problem, the invention according to claim 1 is characterized in that an inner layer is releasably laminated inside an outer layer, and a mouthpiece portion for forming a spout for contents is provided at an upper portion. A part of the outer layer located on the bottom wall of the bottomed cylindrical shape, having a squeezable deformable container body having an opening for introducing outside air between the outer layer and the inner layer;

Having a first check valve for preventing backflow of the contents into the container body and for inflow of outside air, and for opening and closing the mouthpiece of the container body;

A bottom wall of the container body having a cylindrical wall to be screwed and externally provided, and having a bottomed cylindrical base cup having a vent hole opened in a bottom plate;

Having a second check valve attached to the vent hole of the base cup and allowing introduction of outside air;

Due to the close contact between the first seal portion provided on the bottom peripheral wall of the bottom of the container body and the second seal portion provided on the inner peripheral surface of the cylindrical wall of the base cup, the bottom peripheral wall of the container main body and the cylindrical wall of the base cup are formed. That the assembly was airtight,

It is in.

 In the invention according to claim 1, when the body of the squeezable container body is pressed, the first check valve closing the mouthpiece portion is opened, and the contents are moved from the mouthpiece portion to the container body. It is poured out.

When the container body is released from the pressure, the content stops being poured out, the outer layer starts to be restored to its original shape by elastic recovery, and the mouthpiece is closed by the function of the first check valve. Prevents backflow of contents and ingress of outside air into the body At this time, since the inner layer keeps the reduced volume deformed state, the gap between the outer layer that is going to be restored to the original shape and the inner layer that keeps the reduced volume deformed is reduced, and the second check The valve opens the vent in the base cup and allows the outside air to flow between the outer layer and the inner layer through the opening from the vent to quickly restore the outer layer to its original shape.

 After the outer layer has been restored to its original state, when the body of the container body is pressed again, the space between the outer layer and the inner layer is pressurized, and the function of the second check valve closes the ventilation hole, and the inner layer is closed. To prevent the backflow of outside air that has flowed between the outer layer and the outer layer, that is, outflow.

 For this reason, when the body of the container body is pressed again, the content in the volume-reduced inner layer can be pressurized via the air existing between the inner layer and the outer layer, and The first check valve opens the mouthpiece, and the contents can be reliably discharged.

 Even with a structure that has an opening at the bottom of the container body, the bottomed cylindrical base cup is screwed to the bottom of the container body, so the base cup must capture the bottom of the container body. Thus, even in a configuration in which the squeezability of the container body is enhanced, the shape of the bottom portion of the container is stably maintained, and a stable autonomous function is exhibited.

 The bottom peripheral wall of the bottom, which is the part of the container body that is assembled with the base cup, is provided with a thread for screwing and coupling with the base cup. This thread causes the bottom peripheral wall to be unevenly deformed. Since each screw thread also functions as a reinforcing ridge, even if the squeezability of the container body is enhanced, the assembling force between the container body and the base cup can be improved. Will be maintained in a strong state.

In addition, a first seal portion at the bottom is provided in close contact with the second seal portion of the base cup and for tightly assembling the bottom peripheral wall of the bottom of the container body and the cylindrical wall of the base nip. As a result, the base cup is A secure assembling will be ensured.

 The invention according to claim 2 is characterized in that, in the means of the invention according to claim 1, a step is provided around the bottom peripheral wall of the bottom of the container body, and a first seal portion is provided near the step. It is the one that added.

 According to the second aspect of the present invention, the second seal portion of the base cup is in close contact with the bottom peripheral wall of the bottom portion of the container body and the cylindrical wall of the base cup for tightly assembling. (1) Since the seal portion is provided close to the step portion, the self-shaping is stably maintained by the capturing action exerted by the step portion. This will ensure a tight assembly.

 The invention according to claim 3 is characterized in that, in the means according to claim 1 or 2, an opening is formed by opening a cut-out portion formed in an outer layer of the bottom wall on the bottom wall of the bottom of the container body. It has been added.

 In the invention according to claim 3, a laminated parison obtained by co-extruding an outer layer parison and an inner layer parison having almost no compatibility is easily generated in a cutout formed by being crushed and formed by a pinch-off portion of a mold. The bottom crack can be used as an opening as it is, and the opening can be formed in the bottom without a troublesome post-processing operation. The invention according to claim 4 is the invention according to claims 1 to 3, wherein one of the first seal portion and the second seal portion has a circumferential ridge structure, and the other has a smooth circumferential surface structure. It is the one that added.

 In the invention according to claim 4, since the state of close contact between the first seal portion and the second seal portion is a line contact state, it is strong and strong by utilizing local elastic deformation. A stable close contact state can be obtained.

According to a fifth aspect of the present invention, in the means of the first to fourth aspects, one of the first seal portion and the second seal portion is fixed to the bottom peripheral wall of the bottom portion or the inner peripheral surface of the cylindrical wall. And an annular elastic member. According to the fifth aspect of the present invention, since the close contact state between the first seal portion and the second seal portion is brought into contact with the annular elastic member, the elastic deformation force of the member is reduced. By using this, a strong and stable close contact state can be obtained.

 The invention according to claim 6 is characterized in that, in the means according to claims 1 to 5, a plurality of comb teeth pieces are arranged and formed in a handle portion in which a passage communicating with the mouthpiece portion of the container body is formed inside. Each of the comb teeth has a comb body formed with an ejection hole opened in the alignment direction at an intermediate height position of the comb teeth and an ejection path communicating the ejection hole with the passage. It was added to the section.

 According to the invention of claim 6, when the body is pressed by a hand gripping the body of the container body and squeezed in the volume reducing direction, the hair dye as the content is reduced. Since the hair is poured directly between the comb teeth, the hair can be combed with the comb as it is, that is, while holding the body, and the hair dye that has been poured can be applied to the hair. Since the hair dye can be poured out between the comb teeth by pressing the body, the hair dye can be continuously applied to the hair in an appropriate amount. BRIEF DESCRIPTION OF THE FIGURES

 FIG. 1 is an overall side view of a half longitudinal section showing an embodiment of the present invention. FIG. 2 is a longitudinal half sectional view showing the structure of the bottom portion of the embodiment shown in FIG.

 FIG. 3 is a bottom view of the base cup of the embodiment shown in FIG. 1 cut through, and FIG. 4 is an enlarged sectional view showing a cut-off portion of the bottom wall of the embodiment shown in FIG. 4 (a) is a state diagram before the opening is formed, and FIG. 4 (b) is a state diagram after the opening is formed.

FIG. 5 is a longitudinal half sectional view showing the structure of another embodiment of the bottom portion of the container. FIG. 6 is a longitudinal half sectional view showing the structure of another embodiment of the bottom portion of the container. FIG. 7 is a vertical half sectional view showing the structure of still another embodiment of the bottom portion of the container.

 FIG. 8 is a partially enlarged sectional view showing another embodiment of the second check valve used in the present invention.

 FIG. 9 is a partially enlarged sectional view showing another embodiment of the second check valve used in the present invention.

 FIG. 10 is a partially enlarged sectional view showing another embodiment of the second check valve used in the present invention.

 FIG. 11 is a partially enlarged sectional view showing another embodiment of the second check valve used in the present invention.

 FIG. 12 is a partially enlarged sectional view showing another embodiment of the second check valve used in the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a front view of an example in which a comb body 33 is attached to one embodiment of the pouring container according to the present invention. The pouring container includes a container main body 1 and a bottom portion 8 of the container main body 1. And a base cup 20 tightly screwed to the outside. The comb body 33 is assembled to the barrel section 6 of the container body 1 via a mounting body 29 with a passage 37 formed therein communicating with the barrel section 6.

The container body 1 has an outer layer 2 capable of elastic deformation by pressure and recovery from the deformation, and an inner layer 3 made of a synthetic resin having low compatibility with the outer layer 2 and capable of being deflated and deformable and peelable. It has a laminated structure. Further, a short cylindrical mouthpiece 6 is provided on the upper part of the body 4 via a shoulder 5, and a thread is engraved on the outer peripheral surface of the mouthpiece 6. In addition, between the inner and outer layers of the container body 1, It is preferable to provide an adhesive layer with a constant width extending in the axial direction from the part to the bottom, because it enables stable ejection of the contents.When two or more adhesive layers are provided, they should be provided at symmetrical positions. preferable.

At the lower end of the body 4, a bottomed cylindrical bottom 8 (hereinafter referred to as FIG. 2) composed of a bottom peripheral wall 9 and a bottom wall 13 is continuously provided via a downward step 7. A thread 10, a step 11, and a first seal 12 are formed on the bottom peripheral wall 9. When the container body 1 is blow-molded, a cut-off portion 14 closed by a blow mold is formed on the bottom wall 13, and the outer layer 2 of the cut-off portion 14 is opened and opened. A part 15 is formed.

 The thread 10 at the bottom 8 has a strong self-shape retaining force because the thread 10 itself has a circumferentially protruding shape that is locally curved and formed. In the embodiment shown in FIGS. 2 and 5, the step portion 11 is provided at the lower portion of the screw 10, but may be provided at the upper portion of the screw 10 as shown in FIG. .

 The first seal portion 12 is provided near the step portion 11. In the embodiment shown in FIG. 2, the first seal portion 12 is formed into a circumferential ridge structure integrally formed with the step portion 11. Further, the embodiment shown in FIG. 5 has a smooth outer peripheral surface structure sandwiched between the thread 10 and the step 11, and the embodiment shown in FIG. 7 has the step 7 and the step The structure has a smooth outer peripheral surface structure sandwiched between 1 and 1.In each case, it is a structure that maintains a stable and strong self-shape in combination with the part that functions as a capturing rib. It has become.

As shown in FIG. 3, the opening 15 is provided with a cutout portion 14 of the outer layer 2 formed along the parting line on the bottom wall 13, for example, with a partitioning portion on the bottom wall 13. By applying a pinching force along the line, as shown in FIG. 4 (b), the opening is formed by pushing open from the state at the time of molding shown in FIG. 4 (a). In the case where the opening 15 is formed by pushing open the cutout portion 14 in this manner, a bottom crack occurs at the bottom portion 8 and the mechanical strength is reduced. The pump 20 acts as an outer frame of the bottom 8 and acts as a force, so that the dispensing container has a stable self-supporting function.

 The first check valve 18 (see Fig. 1) has a central opening 17 formed in the center of the inner plug packing 16 and a valve piece 19 provided to be openable and closable. Is tightly assembled.

 The base cup 20 has a bottomed cylindrical shape in which a bottom plate 24 is continuously provided at the lower end of the cylindrical wall 21, and is screwed to the bottom 8. The inner peripheral surface of the cylindrical wall 21 is provided with a helical thread 22 that is screwed with the helical thread 10, and is in close contact with the first seal part 12 at a position facing the first seal part 12. And a second seal portion 23 to be formed. A vent hole 25 is provided at the center of the bottom plate 24.

 In the embodiment shown in FIG. 2, the second seal portion 23 has a smooth circumferential surface structure, in the embodiment shown in FIG. 5, has a circumferential ridge structure, and in FIG. In the illustrated embodiment, a combination structure of a plurality of small circumferential ridges is used. Although not shown, one of the first seal portion 12 and the second seal portion 23 may be replaced with the above-described embodiment having an integral structure with the wall. The O-ring fixed to the surface may be constituted by an annular elastic member such as a seal member having an elastically deformed foot pressed against any wall. In this case, the first seal portion 12 and the second seal portion 23 are brought into a strong and stable close contact state by utilizing the elastic deformation force of the annular elastic member.

 A second check valve 27 is attached to the ventilation hole 25 of the base cup 20. In the case of the embodiments shown in FIGS. 2, 5 and 6, the second check valve 27 has a valve holding cylinder 26 standing upright on the upper surface of the bottom plate 24 so as to surround the ventilation hole 25, It is assembled so that the vent hole 25 is opened and closed by a valve piece 28 provided therein.

The structure of the second check valve 27 is limited to the above. However, as shown in FIGS. 7 and 8, a valve holding cylinder 26 having a top cylinder shape is erected at the center of the bottom plate 24, and a vent hole 25 is formed around the valve holding cylinder 26. And a second check valve 27 having a disc-shaped valve piece 28 capable of opening and closing the vent hole 25 may be externally fitted and fixed to the valve holding cylinder 26. Alternatively, as shown in FIG. 9, a second check valve 2 having a vent hole 25 opened in the top wall of a valve holding cylinder 26 having a top cylinder shape and a valve piece 28 for opening and closing the vent hole 25 is provided. The structure in which 7 is fitted to the valve holding cylinder 26 may be used.

 Further, as shown in FIG. 10, the structure and force of the valve holding cylinder 26 of the embodiment shown in FIG. 7 having a bottomed cylindrical shape \ As shown in FIG. 11, the valve holding cylinder 26 is provided. The second check valve 27 having a valve piece 28 covering the whole of the ventilation hole 25 including the cut is provided with a plurality of cuts at the opening edge of the ventilation hole 25. In order to function as the air hole 25, a structure in which the cut is not closed and the air hole 25 is engaged and assembled may be used.

 The attachment body 29 for attaching the comb body 3 3 to the container body 1 is provided at the upper end of the screwing cylinder 30 which is screwed and externally mounted on the mouthpiece section 6 via the inner flange-shaped shoulder wall piece 31. The connecting cylinder piece 32 communicating with the part 6 is constituted by standing up and connecting, and by screwing and assembling on the mouth part 6, the assembly of the inner plug packing 16 to the mouth part 6 is maintained and In addition, ensure that the first check valve 18 is attached to the inner plug packing 16.

The comb body 33 has a handle 35 forming a passage 37 through which the content poured out of the container body 1 passes, and is vertically erected on one side surface of the handle 35 at equal intervals vertically. A plurality of comb teeth pieces 3 4, and an assembled cylinder piece 36, which is attached to the lower end of the handle part 35 in a hanging manner and closely fits and couples to the coupling cylinder piece 32 of the mounting body 29. At the center of each of the comb teeth pieces 34 except for the upper end and the lower end, an ejection hole 39 opened in the vertical direction, that is, in the alignment direction, is opened. The discharge passage 38 formed in 34 communicates with the passage 37. I have.

 In the case of the illustrated embodiment (see FIG. 1), a skirt-shaped tubular piece whose diameter is expanded downward is provided at the lower end of the handle 35 so as to surround the assembled tubular piece 36. By fitting the lower end of the tubular piece to the shoulder wall piece 31 of the mounting body 29, the comb body 33 is securely and stably attached to the mounting body 29.

 Also, the comb body 33 may be directly assembled to the container body 1 without providing the mounting body 29, but in this case, the comb body 33 is attached to the container body 1 so that It is necessary to achieve a tight assembly of the inner packing 16 to the part 6 and a stable assembly of the first check valve 18 to the inner packing 16.

 Further, in the case of the illustrated embodiment (see FIG. 1), the plurality of comb teeth pieces 34 are provided on one side of a handle portion 35 forming a passage 37 through which the content poured out of the container body 1 passes. It has the shape of a horizontal comb that is erected vertically and at equal intervals, but is not limited to this, and is located above the handle 35 and spreads left and right. It may be one that is erected at equal intervals, or a brush shape in which the comb teeth pieces 34 are provided in a plurality of rows.

 Regardless of the direction of the comb body 33 due to the pressing of the body 4 of the container body 1, the contents such as the hair coloring agent are surely in the inner layer 3 in a pressurized state. Since the mouthpiece portion 6 is opened by the function of the check valve 18, the mouthpiece 6 is discharged from the discharge hole 39 through the passage 37 and the discharge passage 38 to the space between the comb teeth 34, and the comb teeth are formed. It is applied to hair by brushing with 3 4.

 When the pressing of the body 4 is released, the inside of the inner layer 3 that was in the pressurized state is reduced in pressure, and the first check valve 18 is closed. Prevent intrusion into the interior.

When the pressing of the body 4 is released, the outer layer 2 starts restoring to its original shape by the elastic restoring force, but the inner layer 3 peeled off from the outer layer 2 becomes the first check valve 1. Since the outside air does not enter due to 8, the volume remains deformed in a wiping state, and a negative pressure state is created between the outer layer 2 and the inner layer 3.

 Therefore, the second check valve 27 is opened, and the outside air flows between the outer layer 2 and the inner layer 3 from the air hole 25 of the base cup 20 through the opening 15 of the container body 1. Invades and outer layer 2 returns to its original shape.

 When the body 4 of the container body 1 is pushed again, the second check valve 27 is closed, so that the outside air that has entered between the outer layer 2 and the inner layer 3 is trapped as it is. In this state, the inner layer 3 is in a pressurized state, and the contents are discharged. The invention's effect

 Since the present invention has the above-described configuration, the following effects can be obtained.In the invention according to claim 1, assembling of the container body and the base cup is achieved by screw connection. However, even if the squeezability of the container body is increased, the strength of assembling the container body and the base cup hardly decreases, thereby conserving resources and safely improving the squeezability. Thus, the ease of use of the container can be improved.

 In addition, since the first seal portion formed on the container body is provided in close contact with the second seal portion of the base cup, the airtight assembly between the bottom portion of the container body and the base cup is reliably maintained. Can be done.

 In the invention according to claim 2, the first seal portion formed on the container main body is provided near the step portion functioning as the reinforcing portion, so that even if the squeezability of the container main body is improved. In addition, the shape holding force of the first seal portion can be sufficiently increased, whereby the airtight assembly between the bottom of the container body and the base cup can be reliably and strongly maintained.

In the invention according to claim 3, the outer layer is formed along the parting line. Since the opening formed in the cutout was used as the opening, the bottom crack easily generated by the laminated structure of the outer layer and the inner layer having almost no compatibility can be used as the opening as it is. There is no need for cumbersome molding operations and equipment to open the opening.

 In the invention according to claim 4, since the seal portion is constituted by a combination of the peripheral ridge structure and the smooth peripheral surface structure, the structure is simple, and the molding can be properly performed even by blow molding. .

 In the invention according to claim 5, the close contact state between the first seal portion and the second seal portion is brought into the contact state via the annular elastic member, so that the elastic deformation force of the member is used. As a result, a strong and stable close contact state can be obtained.

 In the invention according to claim 6, since the comb body is assembled so that the contents accommodated in the container body can be poured out between a plurality of comb teeth pieces arranged linearly, the pressing operation is performed. The discharged contents can be poured directly between the teeth of each comb, and the contents can be directly applied to the hair with this comb, and the application operation can be performed continuously. It can be applied to the hair efficiently and efficiently.

Claims

The scope of the claims 1. The inner layer (3) is releasably laminated inside the outer layer (2), and a mouthpiece (6) is formed on the top to form a spout for the contents. The bottom of the bottomed cylindrical bottom (8) A squeeze-deformable container having an opening (15) for introducing outside air between a part of the outer layer (2) and an inner layer (3) in a part of the outer layer (2) located on a wall (13). Body ( 1) to prevent backflow of contents and inflow of outside air into the container body (1). A first check valve (18) for opening and closing the mouthpiece portion (6); a cylindrical wall (21) screwed to the bottom portion (8); and a vent hole (25) formed in a bottom plate (24). A bottomed cylindrical base cup (20) having an opening, a second check valve (27) attached to the ventilation hole (25) and allowing introduction of outside air, and a force, the bottom portion (8) The first sealing portion (12) provided on the bottom peripheral wall (9) and the second sealing portion (23) provided on the inner peripheral surface of the cylindrical wall (21) come into close contact with the bottom peripheral wall (9). A dispensing container that is tightly assembled with the cylinder wall (21). 2. A step (11) is provided around the bottom peripheral wall (9) of the bottom (8) of the container body (1), and a first seal portion (12) is provided near the step (11). Claim 1 described in claim 1.  3. The outer layer (13) of the bottom wall (13) is placed on the bottom wall (13) of the bottom (8) of the container body (1). 3. The pouring container according to claim 1, wherein the cutout portion (14) formed in 2) is opened to form an opening portion (15).  4. The dispensing container according to claim 1, wherein one of the first seal portion (12) and the second seal portion (23) has a circumferential ridge structure, and the other has a smooth circumferential surface structure.  5. Either the first seal part (12) or the second seal part (23) is an annular elastic member fixed to the bottom peripheral wall (9) of the bottom part (8) or the inner peripheral surface of the cylindrical wall (21). 5. The dispensing container according to claim 1, which is configured. 6. A plurality of comb teeth pieces (34) are aligned and formed in a handle (35) in which a passage (37) communicating with the mouthpiece (6) of the container body (1) is formed. Tooth piece (34) At the intermediate height of the comb teeth (34), a pouring hole (39) opened in the alignment direction, and a pouring path (38) communicating the pouring hole (39) with the passage (37). 6. The dispensing container according to claim 1, wherein a comb body (33) formed with (1) and (2) is attached to the mouthpiece (6).